darkpoon 发表于 2019-1-1 13:33:27

线上Haproxy配置

  安装平台:centos 6.3
  cd /srv
  wget http://haproxy.1wt.eu/download/1.4/src/haproxy-1.4.22.tar.gz
  #1.4.22版本比较稳定,现在最新版本是1.4.23
  tar zxvf haproxy-1.4.22.tar.gz

  cd haproxy-1.4.22
  make TARGET=linux26 PREFIX=/usr/local/haproxy install
  mkdir /usr/local/haproxy/conf -p
  groupadd -r haproxy
  useradd -r -M -g haproxy -s /sbin/nologin haproxy
  vim /usr/local/haproxy/conf/haproxy.cfg
  #写入以下内容,根据自己环境修改IP地址
  global
  log   127.0.0.1 local0 info
  maxconn 4096
  user    haproxy
  group   haproxy
  daemon
  nbproc1
  pidfile /var/run/haproxy.pid
  defaults
  log             global
  mode            http
  option          dontlognull
  retries         3
  option          redispatch
  maxconn         20000
  contimeout      5000
  clitimeout      50000
  srvtimeout      50000
  

  #根据自己需求配置,HA_IP为haproxy的IP地址,IP为后端服务器的IP地址,下面只写了两个实例
  #mysql服务器
  listenserver_mysql_nameHA_IP:3306

  mode tcp
  maxconn 200
  balance roundrobin
  servermysql_name_Amysql_IP:3306check port 3306 inter 5s rise 2 fall 3
  servermysql_name_Bmysql_IP:3306check port 3306 inter 5s rise 2 fall 3
  

  #web服务器
  listen tomcat-app *:8080
  maxconn 2000
  mode http
  balance source
  option httpclose # disable keep-alive
  option forwardfor
  option httpchk GET /safe
  server server_web_AIP:8080check inter 2000 fall 3
  server server_web_BIP:8080check inter 2000 fall 3
  

  #监控管理
  listenadmin_status
  modehttp
  bind HA_IP:8899
  option httplog
  log global
  stats enable
  stats refresh 10s
  stats hide-version
  stats realm Haproxy\ Statistics
  stats uri/admin-status
  stats authadmin:admin
  stats admin if TRUE
  

  #启动脚本
  cd /etc/init.d/
  vim haproxy
  #!/bin/sh
  # haproxy
  # chkconfig:   35 85 15
  # processname: haproxy
  # config:      /usr/local/haproxy/conf/haproxy.cfg
  # pidfile:   /var/run/haproxy.pid
  

  # Source function library.
  . /etc/rc.d/init.d/functions
  

  # Source networking configuration.
  . /etc/sysconfig/network
  

  # Check that networking is up.
  [ "$NETWORKING" = "no" ] && exit 0
  

  config="/usr/local/haproxy/conf/haproxy.cfg"
  exec="/usr/local/haproxy/sbin/haproxy"
  prog=$(basename $exec)
  

  [ -e /etc/sysconfig/$prog ] && . /etc/sysconfig/$prog
  

  lockfile=/var/lock/subsys/haproxy
  

  check() {
  $exec -c -V -f $config
  }
  

  start() {
  $exec -c -q -f $config
  if [ $? -ne 0 ]; then
  echo "Errors in configuration file, check with $prog check."
  return 1
  fi
  

  echo -n $"Starting $prog: "
  # start it up here, usually something like "daemon $exec"
  daemon $exec -D -f $config -p /var/run/$prog.pid
  retval=$?
  echo
  [ $retval -eq 0 ] && touch $lockfile
  return $retval
  }
  

  stop() {
  echo -n $"Stopping $prog: "
  # stop it here, often "killproc $prog"
  killproc $prog
  retval=$?
  echo
  [ $retval -eq 0 ] && rm -f $lockfile
  return $retval
  }
  

  restart() {
  $exec -c -q -f $config
  if [ $? -ne 0 ]; then
  echo "Errors in configuration file, check with $prog check."
  return 1
  fi
  stop
  start
  }
  

  reload() {
  $exec -c -q -f $config
  if [ $? -ne 0 ]; then
  echo "Errors in configuration file, check with $prog check."
  return 1
  fi
  echo -n $"Reloading $prog: "
  $exec -D -f $config -p /var/run/$prog.pid -sf $(cat /var/run/$prog.pid)
  retval=$?
  echo
  return $retval
  }
  

  force_reload() {
  restart
  }
  

  fdr_status() {
  status $prog
  }
  

  case "$1" in
  start|stop|restart|reload)
  $1
  ;;
  force-reload)
  force_reload
  ;;
  checkconfig)
  check
  ;;
  status)
  fdr_status
  ;;
  condrestart|try-restart)
  [ ! -f $lockfile ] || restart
  ;;
  *)
  echo $"Usage: $0 {start|stop|status|checkconfig|restart|try-restart|reload|force-reload}"
  exit 2
  esac
  

  chmod 755 /etc/init.d/haproxy
  /etc/init.d/haproxy start|stop|restart



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